Home / 15,627.06-21,515.40-12,652.74

Finding the Fourth Proportional to 15,627.06, 21,515.40 and 12,652.74

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Solution

The fourth proportional to 15,627.06, 21,515.40 and 12,652.74 is: 17,420.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,627.06 : 21,515.40 = 12,652.74 : x
  2. Step 2: Convert to fraction form
    15,627.06/21,515.40 = 12,652.74/x
  3. Step 3: Cross multiply
    15,627.06x = 21,515.40 × 12,652.74
  4. Step 4: Simplify right side
    15,627.06x = 272,228,762.20
  5. Step 5: Solve for x
    x = 272,228,762.20/15,627.06
  6. Step 6: Final answer
    x = 17,420.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.